13861888 has 22 divisors (see below), whose sum is σ = 27712286. Its totient is φ = 6930432.

The previous prime is 13861879. The next prime is 13861889. The reversal of 13861888 is 88816831.

It can be written as a sum of positive squares in only one way, i.e., 13778944 + 82944 = 3712^2 + 288^2 .

It is not an unprimeable number, because it can be changed into a prime (13861889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5745 + ... + 7792.

Almost surely, 2^13861888 is an apocalyptic number.

It is an amenable number.

13861888 is a deficient number, since it is larger than the sum of its proper divisors (13850398).

13861888 is an equidigital number, since it uses as much as digits as its factorization.

13861888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13557 (or 13539 counting only the distinct ones).

The product of its digits is 73728, while the sum is 43.

The square root of 13861888 is about 3723.1556507887. The cubic root of 13861888 is about 240.2190592528.

It can be divided in two parts, 138 and 61888, that added together give a palindrome (62026).

The spelling of 13861888 in words is "thirteen million, eight hundred sixty-one thousand, eight hundred eighty-eight".